What does Starship version 3 unlock?

“…a rapidly reusable reliable rocket with orbital refilling. Basically all of the ingredients necessary to make life mult multilanetary will be achieved with version three of Starship which we're aiming to launch for the first time at the end of this year.”

— Elon Musk, 29 May 2025 · Watch: SpaceX Starship Update (Starbase, May 29, 2025) · 26:23 ↗